package com.itheima.StringBuilder;

import java.util.Scanner;

public class Demo3 {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        System.out.println("清");
        String s =sc.nextLine();

        StringBuilder sb =new StringBuilder(s);
        sb.reverse();

        String reverseStr = sb.toString();

        if(s.equals(reverseStr)){
            System.out.println("是对称");
        }else{
            System.out.println("不是对称");
        }
    }
}
